“…The starting material was a solvent wash solution from a Tramex [11] cycle (solvent extraction with a mixture of tertiary amines) in the process for recovering 244 Cm from reactor-irradiated plutonium [12], The solution contained 0.4 M LiCl, 0.5 M HCl and significant quantities of 254 Es, 252 Cf, ^»Bk, 244 Cm, ^Arn, 154 Eu, and 144 Ce. After the solvent wash solution was concentrated, the actinides and lanthanides were precipitated by adding NH 4 OH.…”